“Smallville” (KWBQ-19 7 p.m.) The WB’s “Superman as teen” series flies off into the sunset off with a two-hour series finale. ... Now can he put on the damn costume?

Saturday 14

The Specials (KASY-50 7 p.m.) If you liked James Gunn’s recently released black-comedy-cum-superhero-flick Super, check out this unjustly obscure 2000 film. In it, writer/director Gunn speculates on what the world’s seventh-best superhero team does on its day off.

“Nick Cannon: Mr. Showbiz” (Showtime 7 p.m.) Or as I call him: “Mr. Former Nickelodeon Kids’ Show Host Who Knocked Up Mariah Carey.” Hoping to add another hyphen to his actor-rapper-“America’s Got Talent” host résumé, Cannon tries his hand at stand-up comedy.

Off the Rez (TLC 7 p.m.) In this feature-length documentary, a Native American mom from Oregon leaves the reservation in pursuit of her daughter’s dream—becoming one of the best high school basketball players in the country.

“Off Limits” (Travel 7 p.m.) Explorer and history buff Don Wildman (yes, that’s his real name) searches out the forbidden, hidden and unseen places in America. Like a former Nazi military compound in Los Angeles. Who knew?

Tuesday 17

“How the States Got Their Shapes” (History 8 p.m.) In this episode, the quietly, nerdishly compelling new series checks out how forces of nature such as rivers, glaciers and asteroid impacts (!) affected the squiggly lines that form our state borders.